linux-kernel - Re: [PATCH v3 2/2] arm64: dts: ti: k3-j784s4-main: Add PBIST

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Message-ID: <479609b2-1953-4e8a-a7c8-87dcd2eff3d9@ti.com>
Date: Fri, 23 May 2025 15:02:20 +0530
From: "Kumar, Udit" <u-kumar1@...com>
To: Neha Malcom Francis <n-francis@...com>, <nm@...com>, <vigneshr@...com>,
        <kristo@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <u-kumar1@...com>
Subject: Re: [PATCH v3 2/2] arm64: dts: ti: k3-j784s4-main: Add PBIST_14 node

Hello Neha

On 5/14/2025 12:50 PM, Neha Malcom Francis wrote:
> Add DT node for PBIST_14 that is responsible for triggering the PBIST
> self-tests for the MAIN_R5_2_x cores.
>
> Signed-off-by: Neha Malcom Francis <n-francis@...com>
> ---
> Changes since v2:
> - remove ti,bist-under-test property and use ti,sci-dev-id
>
>   arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 11 +++++++++++
>   1 file changed, 11 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> index 0160fe0da983..fd098aac3989 100644
> --- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> @@ -113,6 +113,17 @@ serdes2: serdes@...0000 {
>   			status = "disabled";
>   		};
>   	};
> +
> +	bist_main14: bist@...0000 {
> +		compatible = "ti,j784s4-bist";
> +		reg = <0x00 0x033c0000 0x00 0x400>,
> +		      <0x00 0x0010c1a0 0x00 0x01c>;
> +		reg-names = "cfg", "ctrl_mmr";
> +		clocks = <&k3_clks 237 7>;
> +		power-domains = <&k3_pds 237 TI_SCI_PD_EXCLUSIVE>;
> +		bootph-pre-ram;
> +		ti,sci-dev-id = <234>;
> +	};

Please extend this support to j742s2 SOC as well.

With above change

Reviewed-by: Udit Kumar <u-kumar1@...com>


>   };
>   
>   &scm_conf {